Home / 98,578.12-147,856.38-39,398.44

Finding the Fourth Proportional to 98,578.12, 147,856.38 and 39,398.44

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Solution

The fourth proportional to 98,578.12, 147,856.38 and 39,398.44 is: 59,093.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,578.12 : 147,856.38 = 39,398.44 : x
  2. Step 2: Convert to fraction form
    98,578.12/147,856.38 = 39,398.44/x
  3. Step 3: Cross multiply
    98,578.12x = 147,856.38 × 39,398.44
  4. Step 4: Simplify right side
    98,578.12x = 5,825,310,716.05
  5. Step 5: Solve for x
    x = 5,825,310,716.05/98,578.12
  6. Step 6: Final answer
    x = 59,093.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.